Samsung electronics has developed a new business process that they think can decrease customer complaints. Ms....

 

Transcribed Image Text:

Samsung electronics has developed a new business process that they think can decrease customer complaints. Ms. P is required to conduct a randomized trial to determine its efficacy of the new business process. She has decided that she will sample transactions from the new business process (Group 1) and the old business process (Group 2) for analysis. The new business process will be deemed effective in reducing customer complaints if the difference between mean number of complaints is 28. From past experience you know that data will be normally distributed with standard deviation of 20. Ms. P has requested that you determine the appropriate sample sizes to reduce the likelihood of Type I and Type Il errors. You are given the following values for: Alpha (a) = .05 Beta (B) = .80 You must show all your calculations. Explain fully the meaning your findings please a. b. Samsung electronics has developed a new business process that they think can decrease customer complaints. Ms. P is required to conduct a randomized trial to determine its efficacy of the new business process. She has decided that she will sample transactions from the new business process (Group 1) and the old business process (Group 2) for analysis. The new business process will be deemed effective in reducing customer complaints if the difference between mean number of complaints is 28. From past experience you know that data will be normally distributed with standard deviation of 20. Ms. P has requested that you determine the appropriate sample sizes to reduce the likelihood of Type I and Type Il errors. You are given the following values for: Alpha (a) = .05 Beta (B) = .80 You must show all your calculations. Explain fully the meaning your findings please a. b.

Answer rating: 100% (QA)

aTo calculate the minimum sample size we first need to calculate the margin of error We can use the ... View the full answer